<?php

    /**
     *  PHPExcel_Writer_PDF
     *  Copyright (c) 2006 - 2015 PHPExcel
     *  This library is free software; you can redistribute it and/or
     *  modify it under the terms of the GNU Lesser General Public
     *  License as published by the Free Software Foundation; either
     *  version 2.1 of the License, or (at your option) any later version.
     *  This library is distributed in the hope that it will be useful,
     *  but WITHOUT ANY WARRANTY; without even the implied warranty of
     *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     *  Lesser General Public License for more details.
     *  You should have received a copy of the GNU Lesser General Public
     *  License along with this library; if not, write to the Free Software
     *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
     * @category    PHPExcel
     * @package     PHPExcel_Writer_PDF
     * @copyright   Copyright (c) 2006 - 2015 PHPExcel (http://www.codeplex.com/PHPExcel)
     * @license     http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt    LGPL
     * @version     ##VERSION##, ##DATE##
     */
    class PHPExcel_Writer_PDF implements PHPExcel_Writer_IWriter {
        /**
         * The wrapper for the requested PDF rendering engine
         * @var PHPExcel_Writer_PDF_Core
         */
        private $renderer = null;

        /**
         *  Instantiate a new renderer of the configured type within this container class
         * @param  PHPExcel $phpExcel PHPExcel object
         * @throws PHPExcel_Writer_Exception    when PDF library is not configured
         */
        public function __construct(PHPExcel $phpExcel) {
            $pdfLibraryName = PHPExcel_Settings::getPdfRendererName();
            if (is_null($pdfLibraryName)) {
                throw new PHPExcel_Writer_Exception("PDF Rendering library has not been defined.");
            }
            $pdfLibraryPath = PHPExcel_Settings::getPdfRendererPath();
            if (is_null($pdfLibraryName)) {
                throw new PHPExcel_Writer_Exception("PDF Rendering library path has not been defined.");
            }
            $includePath  = str_replace('\\', '/', get_include_path());
            $rendererPath = str_replace('\\', '/', $pdfLibraryPath);
            if (strpos($rendererPath, $includePath) === false) {
                set_include_path(get_include_path() . PATH_SEPARATOR . $pdfLibraryPath);
            }
            $rendererName   = 'PHPExcel_Writer_PDF_' . $pdfLibraryName;
            $this->renderer = new $rendererName($phpExcel);
        }

        /**
         *  Magic method to handle direct calls to the configured PDF renderer wrapper class.
         * @param   string  $name      Renderer library method name
         * @param   mixed[] $arguments Array of arguments to pass to the renderer method
         * @return  mixed    Returned data from the PDF renderer wrapper method
         */
        public function __call($name, $arguments) {
            if ($this->renderer === null) {
                throw new PHPExcel_Writer_Exception("PDF Rendering library has not been defined.");
            }
            return call_user_func_array([
                                            $this->renderer,
                                            $name
                                        ], $arguments
            );
        }

        /**
         * {@inheritdoc}
         */
        public function save($pFilename = null) {
            $this->renderer->save($pFilename);
        }
    }
